Answer:
d)organism,system,organ, tissue is from smallest to largest
Answer: Both are single-celled microorganisms which contains plasma membranes, cytoplasm, ribosomes, DNA
Explanation:
Cells are the smallest functional unit of organisms which are classified under two main categories namely:
--> prokaryotic cells and
--> eukaryotic cells.
Prokaryotes are unicellular or single-celled organisms which do not possess true nuclei. Their cell structure is simple as there is NO definite nucleus and the chromosomes lie free in a particular part of the cell. Examples of organisms that belongs to this group are the bacteria. They can only be seen through a high power of a light microscope and are found in air, water, soil and living organisms. The general structure of prokaryotes like bacteria contains Chromosome ( single DNA strand coiled up), cytoplasm, ribosome which are few cell components among others.
Eukaryotes are organisms which possess a definite or true nuclei. The cell structure is complex and highly organized with a well-defined nucleus (meaning its DNA is surrounded by a membrane). Many structures called the cell organelles are present which include: mitochondria, chloroplasts, the endoplasmic reticulum, the Golgi apparatus, and lysosomes with other cell components, that is the cytoplasm, plasma membrane and ribosomes. Each organelle carries out a certain type of work. Examples of organisms that belongs to this group are the amoebas.
From the explanation above, both bacteria and amoeba are single- celled organisms which contains plasma membranes, cytoplasm, ribosomes, and DNA.
The answer is C
Plasmids are conferred through horizontal gene transfer in bacteria. The ‘male’ bacteria develops a structure called pili that then attaches to the ‘female’ bacteria. It then transfers it’s replicated plasmid to the ‘female’ bacteria in a process called conjugation. This bacteria will hence have desirable traits that are coded for by the transferred genetic material ,such as antibiotic resistance, after a process called recombination.
Answer:
The correct answer is one strand of each new molecule comes from the original molecule.
Explanation:
DNA replication is process by which the parental DNA is converted into two daughter DNA molecule.DNA replication is semi conservative in nature which means each newly synthesized daughter DNA molecule contain 50% parental DNA characteristics.
Each newly synthesizd daughter DNA molecule contain one parental strand and one newly synthesized strand..Thus half of the characteristics of parental DNA is being conserved in each newly formed daughter DNA molecule.
I would say less pollution than fossil fuel plants - but i’m not sure
